Bear Creek (Middle Titanotherium Beds): Chadronian, South Dakota
collected by T. C. Brown, F. B. Loomis 1903
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Perissodactyla
- Brontotheriidae
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Megacerops tyleri n. sp.
Lull 1905
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recombined as Brontops tyleri | ||||||||||
from "head of Bear Creek ... 35 feet above the base" of a 200 ft Chadron section; see Mader 1989 (7 measurements) | ||||||||||
Reptilia
- Testudines
- Geoemydidae
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Chrysemys inornata n. sp.
Loomis 1904
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Loomis 1904 | |||||||||
synonym of Echmatemys lativertebralis | ||||||||||
"at the head of Bear Creek in Spring Draw Basin" underneath a "titanotherium skeleton" (possibly the Brontops specimen) (1 measurement) | ||||||||||
see common names |
Geography
Country: | United States | State/province: | South Dakota | County: | Shannon |
Coordinates: | 43.9° North, 102.6° West (view map) | ||||
Paleocoordinates: | 45.2° North, 93.7° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
*Period: | Tertiary | ||
Key time interval: | Chadronian | ||
Age range of interval: | 37.20000 - 33.90000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Chadron |
Stratigraphic resolution: | member |
Lithology and environment
Primary lithology: | "siliciclastic" |
Environment: | fluvial-lacustrine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some genera | ||
Collection methods: | survey of museum collection | ||
Reason for describing collection: | taxonomic analysis | ||
Collectors: | T. C. Brown, F. B. Loomis | Collection dates: | 1903 |
Collection method comments: Amherst College collection | |||
Taxonomic list comments:relationship of unit to members of Clark and Beerbower 1967 unclear |
Metadata
Database number: | 16900 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | J. Alroy | Research group: | vertebrate |
Created: | 2002-05-15 00:00:00 | Last modified: | 2011-05-14 01:03:20 |
Access level: | the public | Released: | 2002-05-15 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
2323. | R. S. Lull. 1905. Megacerops tyleri, a new species of titanothere from the Bad Lands of South Dakota. Journal of Geology 13(5):443-456 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
34289 | F. B. Loomis. 1904. Two new river reptiles from the Titanothere beds. American Journal of Science 18:427-432 [J. Alroy/J. Alroy] |